Rafter-supporting Purlins

Module(s): Frame Construction: Rafters, Roof Beams, Posts

You can use the Rafter-supporting Purlins tool to create rafter-supporting purlins and battens.

To place rafter-supporting purlins

1. Click Rafter-supporting Purlins (How).
   

   Activate Rafter-supporting Purlins in one of the following ways

   • Menu bar: Create Architecture Frame Construction: Rafters, Roof Beams, Posts

   • Palette: Tools Create area in the following module(s):

   Rafter Design: Rafters, Roof Beams, Posts

2. Select an option in the Input options: Custom / Plane / RCover.
   • Click Custom to create a temporary plane for the rafter placement.
   • Click Plane if roof planes or custom planes already exist.
   • Click RCover if a roof covering already exists.
3. If you want, you can now modify the purlin parameters.
   Use one of the following options provided on the Context toolbar.
   

   • Click Properties to set the parameters in a dialog box.
   • Click Match Properties to copy the settings form an existing element.
   • Click Load favorite to select saved parameter combinations.
4. Define the length of the region in which the purlins will be placed by clicking a start point and an end point on the outline of the plane.
5. On the Context toolbar, you can define how the rafter-supporting purlins are placed.
6. To finish designing the rafter-supporting purlins, press ESC.
7. Rafter-supporting purlin design will now finish. Save changes?
   Click Yes.
8. To place more rafter-supporting purlins in another region, repeat steps 2 through 5.
9. Press ESC to quit the tool.

   The purlins are always created parallel to the eaves and with an overhang on both sides.